linux-kernel - [PATCH] scripts/get_maintainer.pl: add ability to read from STDIN

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Date:	Wed,  3 Feb 2010 02:30:12 +0800
From:	Daniel Mack <daniel@...aq.de>
To:	linux-kernel@...r.kernel.org
Cc:	Daniel Mack <daniel@...aq.de>, Joe Perches <joe@...ches.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] scripts/get_maintainer.pl: add ability to read from STDIN

This is useful for finding people for the Cc: list without dumping the
patch to a file before. You can just run

  git diff --cached | scripts/get_maintainer.pl -

now.

Signed-off-by: Daniel Mack <daniel@...aq.de>
Cc: Joe Perches <joe@...ches.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 scripts/get_maintainer.pl |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 090f248..3394131 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -237,7 +237,7 @@ foreach my $file (@ARGV) {
     ##if $file is a directory and it lacks a trailing slash, add one
     if ((-d $file)) {
 	$file =~ s@([^/])$@$1/@;
-    } elsif (!(-f $file)) {
+    } elsif ($file ne "-" && !(-f $file)) {
 	die "$P: file '${file}' not found\n";
     }
     if ($from_filename) {
@@ -255,7 +255,11 @@ foreach my $file (@ARGV) {
     } else {
 	my $file_cnt = @files;
 	my $lastfile;
-	open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
+	if ($file eq "-") {
+		open(PATCH, "<$file") or die "$P: Can't open ${file}\n";
+	} else {
+		open(PATCH, "<") or die "$P: Can't read from STDIN\n";
+	}
 	while (<PATCH>) {
 	    my $patch_line = $_;
 	    if (m/^\+\+\+\s+(\S+)/) {
@@ -496,6 +500,7 @@ Notes:
           --git-min-signatures, --git-max-maintainers, --git-min-percent, and
           --git-blame
       Use --hg-since not --git-since to control date selection
+  You can pass '-' as argument to read the patch file from STDIN
 EOT
 }
 
-- 
1.6.3.3

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